You don't necessarily need a wireless CarPlay adapter. I've been playing with them, and so far, unimpressed for the most part. Since the Ridgeline wireless charging pad doesn't work, you need to plug-in your phone, anyway... so, a wireless adapter is just another gimmick or "thing". It would be great if the wireless charger worked too, then you would never need to connect with a wireless adapter. Some folks experience less lockups with a wireless adapter (or it's luck and chance to say it locks up less). But, eh... the latest phone updates seem stable for me on the wired connection.
Now to answer your exact question. I'm a proponent of CarPlay ... it's no cost and the navigation really beats the built-in Navigation. Unless you are in areas with little or no mobile reception, but even then, there are apps with offline navigation (e.g., TomTom). The Navigation in CarPlay has Real-time traffic, speed traps, weather, and construction alerts... etc. This can extend beyond the built-in Apple maps and use a plethora of other navigation apps, too.
Siri is there for the asking, and it is so much easier to navigate with verbal commands than trying to get that done natively with the Honda integration.
Also, CarPlay does do better with phone calls and texts, so you don't need to deal with the phone so much. You can have the text read aloud if you want. As you mention, since you subscribe to SXM, well, you can have better audio quality with their streaming app through CarPlay than the satellite service offers.
I would have a difficult time NOT having CarPlay these days and sometimes with our work fleet of vehicles I need to go without, and it kind of stinks.
I know, only because my friends can always have -interesting- HELLOS or text content that the woman would not be amused by!!
